System and method for controlling duty cycle of CPU fan
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United States of America Patent
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Aug 7, 2012
Grant Date -
Aug 25, 2011
app pub date -
Mar 24, 2010
filing date -
Feb 23, 2010
priority date (Note) -
Expired
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Abstract
A fan duty cycle controlling system and method are implemented by a computing device. The fan duty cycle controlling system obtains an optimum duty cycle range of a fan around a central processing unit (CPU), and controls the fan to operate at the optimum duty cycle range. By implementing the system and method, the computing device can obtain an optimum cooling efficiency of the computer system, and reduce system noise generated by the fan when the fan operates at the optimum duty cycle range.
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